The same person ordered both cars? Is it possible that two buddies went into the dealership and ordered cars at the same time. Same dealership, same order book, one after the other but different owners. 
Oddly enough...One is a Y23 Public Relations car, and the other a Y14 Sold Car....so who really knows the story behind the orders....
But you're on to something....Years ago when I was restoring "The World Famous Barrelcuda" I spoke to the original owner on the phone several time Ed Cater was his name...Seemed back in 1970-71 he played in a rock band and made pretty good money....One day him and a band mate walked into their local NFLD dealer sat down and ordered two 1971 V code Cudas, both FJ6, both Shaker cars, one auto, black interior and no vinyl top and mine, 4spd, black vinyl, and white interior.....When they showed up on the rock....they had sequential VINS as well....For years people have been looking for the other car, it was totalled in 1974 and rumoured to be buried somewhere on the island....true story !
